CN214169332U

CN214169332U - Water plant drainage device for preventing water flooding of plant

Info

Publication number: CN214169332U
Application number: CN202023048224.XU
Authority: CN
Inventors: 邹兴猛; 李斌; 郭夏明; 霍光剑; 祁兵; 肖玉辉
Original assignee: Jinping Guoneng Electric Metallurgical Development Co ltd
Current assignee: Jinping Guoneng Electric Metallurgical Development Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-10
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a water conservancy plant prevents water logging factory building drainage device relates to water conservancy plant drainage technical field. The drainage device comprises a grid plate, a water guide pit and a drainage pipe, the water guide pit is arranged below the ground of the runner chamber overhaul channel, the drainage pipe comprises a first horizontal pipe and a vertical pipe, one end of the first horizontal pipe is communicated with the water guide pit, the other end of the first horizontal pipe is communicated with the top end of the vertical pipe, the bottom end of the vertical pipe is submerged into the surface of tail water, and the grid plate covers the opening at the top of the water guide pit. When a factory accident of flooding occurs, water flows converge into the grid plates, enter the water guide pits, flow into the tail reservoir along the first horizontal pipe and the vertical pipe, and enter the river channel below the tail reservoir along with tail water to be discharged. Overall structure is simple, and the drainage is efficient, need not frequent maintenance, has practiced thrift labour cost, material cost and maintenance cost, and the practicality is strong, and the sexual valence relative altitude has great popularization meaning.

Description

Water plant drainage device for preventing water flooding of plant

Technical Field

The utility model relates to a drainage technical field of hydroelectric power plant, concretely relates to hydroelectric power plant prevents flooding factory building drainage device.

Background

The hydropower plants are generally built in mountainous canyon zones with abundant hydraulic resources, natural disasters such as surrounding mountain torrents, debris flows and the like are frequent, flood factory accidents are often caused by improper management, unsmooth drainage systems and the like in the hydropower plants in rainy seasons, mechanical damage and human death of the hydropower plants are caused seriously, heavy economic loss is caused, and unit outage and equipment damage of the hydropower plants are caused lightly. Therefore, the accident of the water flooded workshop brings great threat to the safe and stable operation of the water power plant, and the water power plant must take key precaution against weak links of the water flooded workshop, so that the accident of the water flooded workshop is prevented, and the safe and stable operation of the water power plant is ensured. Meanwhile, based on uncertainty of natural disasters, equipment operation and personnel operation, personnel preparation and drainage facility preparation of a water-flooded workshop of a hydraulic power plant are required to be made, so that when a water-flooded workshop accident occurs, water flow can be quickly discharged, the accident is prevented from being enlarged, and economic loss is reduced to the maximum extent.

At present, drainage facilities arranged in a hydraulic power plant, particularly a hydraulic power plant with a ball valve layer higher than the surface of tail water, mainly comprise two drainage modes, namely drainage of a water collecting well and drainage of a gallery, and the two drainage modes are mainly used for draining leakage water and accumulated water generated during operation of a unit and are small in drainage quantity and low in efficiency. When the water collecting well is arranged, accumulated water needs to be pumped out by the water pump, the pump lift of the water pump is large, the power consumption is high, the power consumption of a hydraulic power plant is increased, and economic operation of the hydraulic power plant is not facilitated. Meanwhile, the two drainage modes also do not meet the requirement of preventing the drainage quantity of the flooded workshop, so that the hydraulic power plant is usually additionally provided with a drainage pump at a drainage gallery or a water collecting well as an emergency drainage facility when the accident of the flooded workshop occurs. However, the additional arrangement of the water pump is not only unattractive and has limited water discharge, but also greatly increases the daily workload of maintenance personnel and the maintenance cost. Based on the above situation, it is important to find other drainage methods.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water power plant prevents that water logging factory building drainage device solves the problem that current drainage facility displacement is little, the inefficiency maintenance cost is high.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a water power plant prevents flooding factory building drainage device which characterized in that: including grid board, water guide pit and drain pipe, the water guide pit is seted up in runner room access way underground, and the drain pipe includes first horizontal pipe and vertical pipe, first horizontal pipe one end and water guide pit intercommunication, the first horizontal pipe other end and vertical pipe top intercommunication, and the vertical pipe bottom submerges the tail water surface of water, and the grid board lid closes at water guide pit top opening part.

The further technical scheme is that one end of the first horizontal pipe is communicated with the water guide pit through concrete pouring.

The further technical proposal is that the bottom end of the vertical pipe is connected with a second horizontal pipe.

The further technical scheme is that the vertical pipe is arranged close to the wall surface of the tail reservoir, an anchor rod is arranged in the wall surface of the tail reservoir, and the vertical pipe is fixedly connected with the anchor rod.

A U-shaped pipe hoop is sleeved on the outer side wall of the vertical pipe, fixing columns extend outwards from the bottoms of two ends of the U-shaped pipe hoop, and the free ends of the fixing columns are welded and fixed with the anchor rods.

The U-shaped pipe hoop is formed by arc-shaped pieces which are oppositely arranged, and a plurality of extension springs are arranged at the joints of the arc-shaped pieces in parallel.

The working principle is as follows: a water guide pit is formed in the maintenance channel of the runner chamber in a downward digging mode, the inner surface of the water guide pit is poured smoothly by cement, a grid plate is arranged at the opening of the top of the water guide pit, and workers can conveniently enter and exit the maintenance channel while water is drained. A hole is horizontally formed in the side wall of the water guide pit and communicated with the tail water reservoir, and a first horizontal pipe is embedded in the hole and poured by concrete, so that the first horizontal pipe is communicated with the water guide pit and is fixedly firm. The tail end of the first horizontal pipe is connected with the vertical pipe along the wall of the tail reservoir, and the vertical pipe extends to the position below the surface of the tail water so as to reduce the noise of the tail water impacted by the water flow in the drainage pipe. The end of the vertical pipe is provided with a second horizontal pipe, the opening direction of the second horizontal pipe is consistent with the direction of tail water flow, so that the washing of the tail water reservoir by water flow is avoided, and the water hammer is prevented. For the vibration of vertical pipe influences drain pipe life when preventing the drainage, the stock has been preset on the tail reservoir wall, can be with vertical tub of lateral wall direct and stock welded connection, also can use the ferrule to cup joint pipe hoop and stock welded fastening again on vertical pipe.

When a factory accident of flooding occurs, water flows converge into the grid plates, enter the water guide pits, flow into the tail reservoir along the first horizontal pipe and the vertical pipe, and enter the river channel below the tail reservoir along with tail water to be discharged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. above-mentioned drainage device overall structure is simple, the cheap installation, and the drainage is efficient, need not often to maintain the maintenance, uses water pump drainage mode to compare with the tradition and has reduced and has arranged processes such as water pump and long distance stay wire, stringing to practiced thrift labour cost, material cost and maintenance cost, the practicality is strong, and the sexual valence relative altitude has great popularization meaning.

2. The first horizontal pipe is fixed by pouring concrete, so that the weight of the vertical pipe is effectively borne, the fixation of the vertical pipe and the anchor rod is effectively ensured, and the service life of the drain pipe is prolonged; the noise of tail water impact of water flow in the drainage pipe is reduced by arranging the vertical pipe; through the setting of second horizontal pipe, avoid rivers to the washing away of tail reservoir, prevent that the water hammer from taking place.

3. Make things convenient for the assembly of perpendicular pipe to fix through U type ferrule, the vibration that perpendicular pipe received when effectively cushioning the drainage through extension spring's setting influences, further prolongs the life of drain pipe.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the assembly of the pipe clamp and the vertical pipe in the manifold according to the present invention.

In the figure: 1-grating plate, 2-water guide pit, 3-water discharge pipe, 301-first horizontal pipe, 302-vertical pipe, 303-second horizontal pipe, 4-anchor rod, 5-U-shaped pipe hoop, 501-fixed column, 502-arc sheet and 6-extension spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

Fig. 1 shows a water plant prevents that water logging factory building drainage device, including grid plate 1, water guide pit 2 and drain pipe 3, water guide pit 2 is seted up at runner room access way subaerial, drain pipe 3 includes first horizontal pipe 301 and vertical pipe 302, first horizontal pipe 301 one end and water guide pit 2 intercommunication, the first horizontal pipe 301 other end and vertical pipe 302 top intercommunication, the tail water surface of water is submerged in vertical pipe 302 bottom, grid plate 1 lid closes at water guide pit 2 top opening part. One end of the first horizontal pipe 301 is communicated with the water guide pit 2 through concrete pouring. The bottom end of the vertical pipe 302 is connected with a second horizontal pipe 303. The vertical pipe 302 is arranged close to the wall surface of the tail reservoir, the anchor rod 4 is arranged in the wall surface of the tail reservoir, and the vertical pipe 302 is fixedly connected with the anchor rod 4.

A water guide pit 2 is formed in the maintenance channel of the runner chamber in a downward digging mode, the inner surface of the maintenance channel is poured smoothly by cement, a grid plate 1 is arranged at the opening of the top of the water guide pit 2, and workers can conveniently enter and exit the maintenance channel while water is drained. A hole is horizontally formed in the side wall of the water guide pit 2 and communicated with a tail water reservoir, a first horizontal pipe 301 is embedded in the hole and poured by concrete, and the first horizontal pipe 301 is communicated with the water guide pit 2 and is fixedly firm. A vertical pipe 302 is connected to the end of the first horizontal pipe 301 along the wall of the tailrace reservoir, and the vertical pipe 302 extends to below the surface of the tailrace water to reduce the noise of the water flow in the drain pipe 3 impacting the tailrace water. The end of the vertical pipe 302 is provided with a second horizontal pipe 303, the opening direction of the second horizontal pipe 303 is consistent with the direction of tail water flow, the flushing of the tail water reservoir by water flow is avoided, and the occurrence of water hammer is prevented. For the vibration of preventing vertical pipe 302 when the drainage from influencing drain pipe 3 life, anchor rod 4 has been preset on the tail reservoir wall, can be with vertical pipe 302 lateral wall direct with anchor rod 4 welded connection.

When a factory accident of water flooding occurs, water flows converge into the grid plate 1, enters the water guide pit 2, flows into the tail reservoir along the first horizontal pipe 301, the vertical pipe 302 and the second horizontal pipe 303, and enters the river channel below the tail reservoir along with tail water to be discharged.

In order to facilitate the fixing of the vertical pipe 302, as shown in fig. 2, a U-shaped pipe hoop 5 is sleeved on the outer side wall of the vertical pipe 302, fixing columns 501 extend outwards from the bottoms of the two ends of the U-shaped pipe hoop 5, and the free ends of the fixing columns 501 are welded and fixed with the anchor rods 4. In order to effectively reduce the vibration influence of water flow on the vertical pipe 302, the U-shaped pipe hoop 5 is composed of arc-shaped pieces 502 which are arranged oppositely, and a plurality of extension springs 6 are arranged at the joints of the arc-shaped pieces 502 in parallel.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More particularly, various variations and modifications are possible in the component parts and/or arrangements within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a water power plant prevents flooding factory building drainage device which characterized in that: including grid plate (1), water guide pit (2) and drain pipe (3), water guide pit (2) are seted up at runner room maintenance passageway underground, drain pipe (3) are including first horizontal pipe (301) and vertical pipe (302), first horizontal pipe (301) one end and water guide pit (2) intercommunication, first horizontal pipe (301) other end and vertical pipe (302) top intercommunication, the tail water surface is submerged to vertical pipe (302) bottom, grid plate (1) lid closes at water guide pit (2) top opening part.

2. The device of claim 1, wherein the device comprises: one end of the first horizontal pipe (301) is communicated with the water guide pit (2) through concrete pouring.

3. The device of claim 1, wherein the device comprises: the bottom end of the vertical pipe (302) is connected with a second horizontal pipe (303).

4. The device of claim 3, wherein the device comprises: the vertical pipe (302) is arranged close to the wall surface of the tail reservoir, the anchor rod (4) is arranged in the wall surface of the tail reservoir, and the vertical pipe (302) is fixedly connected with the anchor rod (4).

5. The device of claim 4, wherein the device comprises: the outer side wall of the vertical pipe (302) is sleeved with a U-shaped pipe hoop (5), the bottoms of the two ends of the U-shaped pipe hoop (5) extend outwards to form a fixing column (501), and the free end of the fixing column (501) is fixedly welded with the anchor rod (4).

6. The device of claim 5, wherein the device comprises: u type ferrule (5) comprises relative arc piece (502) that sets up, and arc piece (502) junction parallel arrangement has many extension spring (6).